The aims of this study are to identify the character and quality of ancient environment and building, analyze and determine the factors caused degradation of ancient environment and building quality, and determine the act of ancient environment and building protection. The method used in this study are descriptive, evaluative, and development. The results of this study shows that the degradation of environment quality occur in four aspects, there are accessibility reach out, healthy, safety, and romantically. The degradation of quality occurs at the ancient building too. There are 11 buildings with little damaged (16%), 55 buildings with moderate damaged (78%), and 4 buildings with great damaged (6%). The factors that caused degradation of environment quality are less society involved in conservation and fricative environment function. The factors that caused the degradation of ancient building are less government fund, change of owner, and less treatment at the building. The act to protect the ancient environment is differences in three steps, there are preservation, conservation, and rehabilitation or gentrification. The act to protect the ancient building are preservation (8 buildings), conservation (54 buildings), and rehabilitation or restoration (8 buildings).